Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Sea Otter Counts Near Subtidal Monitoring Sites Around San Nicolas Island, California 1980-2017 Sea Otter Counts Near Subtidal Monitoring Sites Around San Nicolas Island, California 1980-2017
The data consist of counts of sea otters in each year from 1980 to 2017 that are within 2 kilometers of the location of the 6 original subtidal ecosystem monitoring sites around San Nicolas Island, California. Beginning with the reintroduction of sea otter to the waters of San Nicolas Island in 1987, three to four surveys have been conducted at the island each year. Shore-based observers...
Thematic response frequency of user feedback on coastal science products Thematic response frequency of user feedback on coastal science products
Decision support tools play a critical role in assisting coastal decision-makers in managing coastal systems; yet there are challenges to developing tools that align with the functional needs of end-users. By combining usability testing and contextual inquiry methods, we put forth a hybrid approach for collecting user feedback within the context of federal government research. This...
Major and trace element geochemical data for the Petersburg Granite (sensu stricto), Pocoshock Creek Gneiss, and related Appalachian igneous rocks Major and trace element geochemical data for the Petersburg Granite (sensu stricto), Pocoshock Creek Gneiss, and related Appalachian igneous rocks
The Dinwiddie terrane, formerly the Petersburg Granite (sensu lato), was originally interpreted as a Pennsylvanian - Permian igneous complex located in the eastern Piedmont of Virginia and considered to be a single batholith that comprises different textural varieties, likely assumed to have been emplaced from a single source during Alleghanian metamorphism (Bloomer 1939; Bobyarchick...
Water-quality data collected from experimental mesocosms in Malheur Lake, Oregon, 2021 and 2023 Water-quality data collected from experimental mesocosms in Malheur Lake, Oregon, 2021 and 2023
Malheur Lake in southeastern Oregon is a shallow, freshwater lake that provides valuable habitat for birds along the Pacific Flyway. The lake was in a turbid state for multiple decades, and past studies documented high suspended-sediment concentrations, high nutrient concentrations, and low light infiltration through the water column. Experimental restoration trials were conducted in...
Landslide Inventories across the United States (ver. 3.0, February 2025) Landslide Inventories across the United States (ver. 3.0, February 2025)
1. Abstract Landslides are damaging and deadly, and they occur in every U.S. state. However, our current ability to understand landslide hazards at the national scale is limited, in part because spatial data on landslide occurrence across the U.S. varies greatly in quality, accessibility, and extent. Landslide inventories are typically collected and maintained by different agencies and
ECCOE 2024 Surface Reflectance Validation Dataset ECCOE 2024 Surface Reflectance Validation Dataset
Scientists and engineers from the U.S. Geological Survey (USGS) Earth Resources Observation and Science Center (EROS) Cal/Val Center of Excellence (ECCOE) collected in situ measurements using field spectrometers to support the validation of surface reflectance products derived from Earth observing remote sensing imagery. Data provided in this data release were collected during select...